Affiliation: | 1. Institute of Electronic Devices, University of Wuppertal, Wuppertal, Germany;2. Microstructure Engineering, University of Wuppertal, Wuppertal, Germany;3. College of Chemistry/Institute of Polymers, Nanchang University, Nanchang, China;4. Institut für Hochfrequenztechnik, Technische Universit?t Braunschweig, Braunschweig, Germany |